Identification of Pod Shattering Resistance of Early-maturing Brassica napus L. and Material Screening

doi:10.11923/j.issn.2095-4050.cjas2020-0008

Abstract

Abstract:

To screen pod shattering resistant varieties and to promote the mechanized production process of rapeseed (Brassica napus L.) in areas of early-maturing varieties, pod shattering resistance index (SRI) of 98 early-maturing Brassica napus L. materials was assessed with random impact test method. The testing results were analyzed by cluster analysis and correlation analysis in combining with related agronomic traits. The results showed that the coefficient of variation (CV) of SRI was 41.38%, and the materials with SRI≥0.4 accounted for 68.4%. The cluster analysis demonstrated that the 98 early-maturing Brassica napus L. materials were clustered into three groups: A, B, and C. The average SRI of group A was 0.35, presenting easy shattering. The average SRI of group B was 0.93, presenting high resistance to shattering. The average SRI of group C was 0.65, presenting moderate resistance. The correlation analysis with main agronomic traits showed that SRI had an extremely and significantly positive correlation with pod length and a significantly positive correlation with 1000-seed weight, indicating that pod length and 1000-seed weight significantly affected pod shattering resistance, and both the two indexes could be used in shattering resistance screening of Brassica napus L.. Finally, the test materials with SRI>0.4 were screened in terms of yield and oil content, and 10 materials which had higher SRI and 5% more yield increase compared with that of CK (‘HY8’) were screened out. The study could provide theoretical guidance for phenotypic identification, genetic analysis and molecular marker-assisted selection of pod shattering resistance in early-maturing Brassica napus L..

Key words: early-maturing Brassica napus L., pod shattering resistant index, variety screen, yield, agronomic traits

TIAN Zhengshu, LUO Yanqing, CHI Xuchun, ZHAO Kaiqin, ZHANG Yunyun, FU Minglian, LI Jinfeng. Identification of Pod Shattering Resistance of Early-maturing Brassica napus L. and Material Screening[J]. Journal of Agriculture, 2022, 12(2): 40-46.

Figures/Tables 6

References 23

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抗裂角等级	抗裂角指数
极易裂	SRI≤0.20
易裂	0.20<SRI≤0.40
低抗	0.40<SRI≤0.60
中抗	0.60<SRI≤0.80
高抗	0.80<SRI≤1

抗裂角等级	抗裂角指数
极易裂	SRI≤0.20
易裂	0.20<SRI≤0.40
低抗	0.40<SRI≤0.60
中抗	0.60<SRI≤0.80
高抗	0.80<SRI≤1

编号		材料名称		抗裂角指数		抗性等级		编号		材料名称	抗裂角指数		抗性等级
1		YA0003		0.585		低抗		50		YA1093	0.67		中抗
2		YA0025		0.368		易裂		51		YA1101	0.63		中抗
3		YA0066		0.94		高抗		52		YA1109	0.94		高抗
4		YA0114		0.58		低抗		53		YA1110	0.483		低抗
5		YA0115		0.4		低抗		54		YA1114	0.232		易裂
6		YA0203		1.0		高抗		55		YA1121	0.25		易裂
7		YA0272		0.675		中抗		56		YA1125	0.523		低抗
8		YA0273		0.3		易裂		57		YA1134	0.63		中抗
9		YA0291		0.42		低抗		58		YA1254	0.36		易裂
10		YA0294		0.27		易裂		59		YA1255	0.517		低抗
11		YA0298		0.62		中抗		60		YA1287	0.655		中抗
12		YA0307		0.463		低抗		61		YA1323	0.63		中抗
13		YA0315		0.78		中抗		62		YA1338	0.395		易裂
14		YA0321		0.33		易裂		63		YA1347	0.52		低抗
15		YA0338		0.243		易裂		64		YA1399	0.37		易裂
16		YA0345		0.59		低抗		65		YA1404	0.92		高抗
17		YA0349		0.35		易裂		66		YA1428	0.52		低抗
18		YA0350		0.473		低抗		67		YA1439	0.46		低抗
19		YA0353		0.462		低抗		68		YA1458	0.93		高抗
20		YA0363		1.0		高抗		69		YA1487	0.443		低抗
21		YA0365		0.642		中抗		70		YA1489	0.372		易裂
22		YA0392		0.303		易裂		71		YA1508	0.45		低抗
23		YA0399		0.493		低抗		72		YA1516	0.565		低抗
24		YA0410		0.21		易裂		73		YA1520	0.722		中抗
编号	材料名称		抗裂角指数		抗性等级		编号		材料名称			抗裂角指数		抗性等级
25	YA0429		0.185		极易裂		74		YA1534			0.57		低抗
26	YA0446		0.223		易裂		75		YA1536			0.255		易裂
27	YA0476		0.72		中抗		76		YA1539			0.835		高抗
28	YA0506		0.418		低抗		77		YA1542			0.19		极易裂
29	YA0549		0.93		高抗		78		YA1615			0.737		中抗
30	YA0571		0.595		低抗		79		Y16JD077			0.59		低抗
31	YA0637		0.46		低抗		80		CY17086			0.495		低抗
32	YA0645		0.507		低抗		81		YYZ29			0.673		中抗
33	YA0657		0.19		极易裂		82		BY10			0.298		易裂
34	YA0697		0.37		易裂		83		GHY8			0.243		易裂
35	YA0700		0.317		易裂		84		HY8（对照）			0.527		低抗
36	YA0714		0.5		低抗		85		YY7			0.587		低抗
37	YA0734		0.24		易裂		86		YHYZ1			0.638		中抗
38	YA0746		0.208		易裂		87		YY16JD007			0.643		中抗
39	YA0749		0.605		中抗		88		YYZ10			0.422		低抗
40	YA0753		0.453		低抗		89		YYZ15F291			0.428		低抗
41	YA0933		0.69		中抗		90		YYZ52032			0.408		低抗
42	YA0945		0.258		易裂		91		YYZ52034			0.778		中抗
43	YA0949		0.165		极易裂		92		YYZ52042			0.255		易裂
44	YA0962		0.38		易裂		93		YYZ52048			0.407		低抗
45	YA0985		0.928		高抗		94		YYZ51			0.86		高抗
46	YA1024		0.198		极易裂		95		YYZF303			0.197		极易裂
47	YA1033		0.625		中抗		96		YYZ30			0.677		中抗
48	YA1060		0.908		高抗		97		YYZL235026			0.692		中抗
49	YA1073		0.863		高抗		98		YYZM52001			0.682		中抗

编号		材料名称		抗裂角指数		抗性等级		编号		材料名称	抗裂角指数		抗性等级
1		YA0003		0.585		低抗		50		YA1093	0.67		中抗
2		YA0025		0.368		易裂		51		YA1101	0.63		中抗
3		YA0066		0.94		高抗		52		YA1109	0.94		高抗
4		YA0114		0.58		低抗		53		YA1110	0.483		低抗
5		YA0115		0.4		低抗		54		YA1114	0.232		易裂
6		YA0203		1.0		高抗		55		YA1121	0.25		易裂
7		YA0272		0.675		中抗		56		YA1125	0.523		低抗
8		YA0273		0.3		易裂		57		YA1134	0.63		中抗
9		YA0291		0.42		低抗		58		YA1254	0.36		易裂
10		YA0294		0.27		易裂		59		YA1255	0.517		低抗
11		YA0298		0.62		中抗		60		YA1287	0.655		中抗
12		YA0307		0.463		低抗		61		YA1323	0.63		中抗
13		YA0315		0.78		中抗		62		YA1338	0.395		易裂
14		YA0321		0.33		易裂		63		YA1347	0.52		低抗
15		YA0338		0.243		易裂		64		YA1399	0.37		易裂
16		YA0345		0.59		低抗		65		YA1404	0.92		高抗
17		YA0349		0.35		易裂		66		YA1428	0.52		低抗
18		YA0350		0.473		低抗		67		YA1439	0.46		低抗
19		YA0353		0.462		低抗		68		YA1458	0.93		高抗
20		YA0363		1.0		高抗		69		YA1487	0.443		低抗
21		YA0365		0.642		中抗		70		YA1489	0.372		易裂
22		YA0392		0.303		易裂		71		YA1508	0.45		低抗
23		YA0399		0.493		低抗		72		YA1516	0.565		低抗
24		YA0410		0.21		易裂		73		YA1520	0.722		中抗
编号	材料名称		抗裂角指数		抗性等级		编号		材料名称			抗裂角指数		抗性等级
25	YA0429		0.185		极易裂		74		YA1534			0.57		低抗
26	YA0446		0.223		易裂		75		YA1536			0.255		易裂
27	YA0476		0.72		中抗		76		YA1539			0.835		高抗
28	YA0506		0.418		低抗		77		YA1542			0.19		极易裂
29	YA0549		0.93		高抗		78		YA1615			0.737		中抗
30	YA0571		0.595		低抗		79		Y16JD077			0.59		低抗
31	YA0637		0.46		低抗		80		CY17086			0.495		低抗
32	YA0645		0.507		低抗		81		YYZ29			0.673		中抗
33	YA0657		0.19		极易裂		82		BY10			0.298		易裂
34	YA0697		0.37		易裂		83		GHY8			0.243		易裂
35	YA0700		0.317		易裂		84		HY8（对照）			0.527		低抗
36	YA0714		0.5		低抗		85		YY7			0.587		低抗
37	YA0734		0.24		易裂		86		YHYZ1			0.638		中抗
38	YA0746		0.208		易裂		87		YY16JD007			0.643		中抗
39	YA0749		0.605		中抗		88		YYZ10			0.422		低抗
40	YA0753		0.453		低抗		89		YYZ15F291			0.428		低抗
41	YA0933		0.69		中抗		90		YYZ52032			0.408		低抗
42	YA0945		0.258		易裂		91		YYZ52034			0.778		中抗
43	YA0949		0.165		极易裂		92		YYZ52042			0.255		易裂
44	YA0962		0.38		易裂		93		YYZ52048			0.407		低抗
45	YA0985		0.928		高抗		94		YYZ51			0.86		高抗
46	YA1024		0.198		极易裂		95		YYZF303			0.197		极易裂
47	YA1033		0.625		中抗		96		YYZ30			0.677		中抗
48	YA1060		0.908		高抗		97		YYZL235026			0.692		中抗
49	YA1073		0.863		高抗		98		YYZM52001			0.682		中抗

	SRI	PH	BN	BH	IL	BA	PL	SP	TSW	PPN
SRI	1	0.157	-0.040	0.096	0.180	0.015	0.281^**	0.100	0.186^*	-0.016
PH	0.157	1	0.250^**	0.637^**	0.565^**	-0.028	0.290^**	0.022	-0.174^*	0.339^**
BN	-0.040	0.250^**	1	0.040	-0.065	0.082	-0.105	0.031	-0.314^**	0.267^**
BH	0.096	0.637^**	0.040	1	-0.113	-0.034	0.205^*	-0.065	-0.183^*	0.178
IL	0.180	0.565^**	-0.065	-0.113	1	-0.104	0.243^*	0.262^*	0.193^*	0.417^**
BA	0.015	-0.028	0.082	-0.034	-0.104	1	-0.149	-0.056	-0.122	-0.013
PL	0.281^**	0.290^**	-0.105	0.205^*	0.243^*	-0.149	1	0.203^*	0.447^**	-0.126
SP	0.100	0.022	0.031	0-.065	0.262^*	-0.056	0.203^*	1	-0.039	0.020
TSW	0.186^*	-0.174^*	-0.314^**	-0.183^*	0.193^*	-0.122	0.447^**	-0.039	1	-0.263^**
PPN	-0.025	0.383^**	0.584^**	-0.144	0.456^**	0.126	-0.148	0.056	-0.207^*	0.633^**